常见的通信面试题.doc

11*2=3 41256212PCM30/32488ns 3PCM30/32TS0TS164PCM30/32500HZ2ms561310nm1550nm7G.6521310nm8910NNN-1/2 11NN-1 12ATM139814155616DC117DC118DC2DC119DC12021322CCITT12152324No.725No.7HSTPLSTPSP262048Kbits/s 2048KHz27No.728No.7HSTPABABHSTPABHSTP29LSTPABHSTP30LSTPABHSTP31SPSTP32SPSTP333433352436PABX372048Kbits/s38STPSTP51239STPSTP80000MSU/s40STPSTP25641STPSTP102442STPSTP10000MSU/s 12843444546470.05-0.10Erl/0.10-0.15Erl/480.7Erl/491AA1A2A3KBA4A5A6KA50PSTNISDNLAMA51CAMA52ZVUA2048Kbps/s5354/E/O/O/E55220V-48V56 57SPSTPLINK58ATM535 4859PCMHDB3NRZ60GSM3 TMSC1TMSC2MSC61OSI62TCP/IPTCPIPIPX/SPXIPXSPX6364 65 66PCM 67BORSCHT6810BASE2BNC18510BaseTRJ4510069No.7 MTP UP UP DUP ISDN 70Erl BHCA71/72DPC OPC CIC CIC5 7 PCM73 DTE DCE 74TCPIPOSI75HDLC,HDSL,ADSL,SDSL76,77TT T 78 79NO.7IAM IAI ANC GRQ GSM ACM CLF RLG 80NO.7 81NO.7, 82UNI SNI Q3.83TMN .84SDH SOHPAYLOADAU PTR 3TU-12 1TUG-2 7TUG-2TUG-33TUG-3VC-485 FTTC FTTB FTTOFTTH86ISDNBRIPRIPCMA13128u1.31um1.55umNo.7HSTPLSTPSP2No.7OPCDPCCICSLCNo.7MTP UPNo.7MSULSSUFISUNo.764KBPS1No.7GSM900MHz1800MHzGSMTMSC1TMSC2MSCAMSCBSC2MbpsAbitsBSCBTSOSITCP/IPTCPIPIPX/SPXIPXSPXV5.22048kbit/s TS16 TS31 CC TS0 STP2Mb/sSTPSTP HSTP ALSTP C3BLSTP 10W 0.86 *:10s 20s 90s SDH 2 1 ITU-T G.703 5 VSWR 1.5GSM200KHZ0.577ms4.5dB 1497ISDN0.05-0.1Erl/ 0.1-0.15Erl/ 0.7Erl/ SDHSTM-1155.520MbpsSTM-4622.080Mbps,STM-162488.240MBps.No.7CAMALAMAPAMAC &C083.0mC&C081.2-1.5m1.4-1.5m1.2m0.8m1MC&C08-41V- -57VC&C08450KgBITS2MHZ2Mbit2B+D ISDN160Kbps2050185m100M3030359525350A1348V3.2VPDH 2048kbit/sSDH STMN PDH 2048kbit/s2048khz2048kbit/sSTMN1CABCD2NDANN-1 BNCN-1 D1/2NN-13AA B C D4BAB1%CD5DABCD6BAB1%CD7BAX.21 BX.25 CX.28 DX.758N-ISDNABCDFA BC384K DE F9ACDA BDDN C DATM ESDH10STPCA128B256C512D102411STPBA7000MSU/sB10000MSU/sC14000MSU/sD20000MSU/s12ATMCA B CD13GSMDAFDMA BTDMA CCDMA DFDMA-TDMA14GSMAA8 B6 C4 D215BA110119112180 B110119120122C110114117168 D11011916618516 BDA10BASE-T BATMCEDI DFDDI17ACATCP/IP BMAP CIPX/SPX DV.2418IPBDAping Bwinipcfg Ctracert Dipconfig19IPDA256.3.2.1 B197.9.4.0 C199.100.331.78 D11.15.33.23520ABDFABCDEHUB F21 B A10% B20%C 30% D40%22 B A1 B3C24 D23 C ISDN A ALAMA BPAMACCAMA DBULK24 BA 540HZ B 450HZC D 1980HZ25SDH BA B LOFC D26 C AZ BDTE/DCECQ3 D2B1Q27 C E MAA5000 B.10000 C.20000D.12 E.18 F.20 G.2628CID C A510 B1020C1030 D104029 B LSTPC3 APSDN B C D N-ISDN(D)30 C A BC D31450MHZ B 900MHZ C A1010-6 B510-6 C310-6 D110-63225W C 25W B A55dB B70dB C2.5uW D5uW33 C dBA12 B24 C29 D3234. BDA10BASE-T BATMCEDI DFDDI35. ACATCP/IP BMAP CIPX/SPX DV.2436. CIHABA BC DBIOSE37. E1DACISCO 2501 BQuidway 2501CCISCO 2522 DCISCO 450038. IPBDAping Bwinipcfg Ctracert Dipconfig39. ADEA B CD EAUTOCAD R1440. ABDEG AUnix BLinux CWIN98 DWINDOWS NT ENETWARE